From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 846AACA0EC0 for ; Mon, 11 Sep 2023 21:20:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344474AbjIKVOH (ORCPT ); Mon, 11 Sep 2023 17:14:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43692 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242290AbjIKP1D (ORCPT ); Mon, 11 Sep 2023 11:27:03 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1C6FBE4 for ; Mon, 11 Sep 2023 08:26:59 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 61DDEC433C7; Mon, 11 Sep 2023 15:26:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1694446018; bh=rAcUfWGD4BReb+OLJE5309r+1jQBqrmEVRN84+FL2tI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Mo65bfs2vbdJUTQ7Qv2TVwdDa0E+W1cHaYq/oz0JXtJhPS6E6cZ6nvK+P9xd84ay9 7EcFFmkV/JjAvXwN+2Swh3/6auswPm2GhUx7gC/ncrIHwEHKMPKtveZayV/A0rbRJP Uh3gimEq6nS/UgPQeIpWdrqL3GPo/nEtBic3F5I0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yuan Y Lu , Logan Gunthorpe , Dave Jiang , Jon Mason Subject: [PATCH 6.1 554/600] ntb: Drop packets when qp link is down Date: Mon, 11 Sep 2023 15:49:47 +0200 Message-ID: <20230911134649.971471786@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230911134633.619970489@linuxfoundation.org> References: <20230911134633.619970489@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dave Jiang commit f195a1a6fe416882984f8bd6c61afc1383171860 upstream. Currently when the transport receive packets after netdev has closed the transport returns error and triggers tx errors to be incremented and carrier to be stopped. There is no reason to return error if the device is already closed. Drop the packet and return 0. Fixes: e26a5843f7f5 ("NTB: Split ntb_hw_intel and ntb_transport drivers") Reported-by: Yuan Y Lu Tested-by: Yuan Y Lu Reviewed-by: Logan Gunthorpe Signed-off-by: Dave Jiang Signed-off-by: Jon Mason Signed-off-by: Greg Kroah-Hartman --- drivers/ntb/ntb_transport.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) --- a/drivers/ntb/ntb_transport.c +++ b/drivers/ntb/ntb_transport.c @@ -2276,9 +2276,13 @@ int ntb_transport_tx_enqueue(struct ntb_ struct ntb_queue_entry *entry; int rc; - if (!qp || !qp->link_is_up || !len) + if (!qp || !len) return -EINVAL; + /* If the qp link is down already, just ignore. */ + if (!qp->link_is_up) + return 0; + entry = ntb_list_rm(&qp->ntb_tx_free_q_lock, &qp->tx_free_q); if (!entry) { qp->tx_err_no_buf++;